Does Oklahoma's Reputation Precede Itself?

There are several reasons to believe Oklahoma won't win the Big 12 title in 2013. It lost a four-year starter at quarterback (albeit a heavily criticized quarterback) in Landry Jones. It loses seven starters from a defense that struggled late in 2012 after a strong start, playing just well enough to earn a share of the Big 12 title.
Two of its best players, receiver Kenny Stills and safety Tony Jefferson, left school early for the NFL, leaving big holes on both sides of the ball.